Metal treatment – Compositions – Heat treating
Patent
1979-07-09
1981-03-24
Dean, R.
Metal treatment
Compositions
Heat treating
148 203, C22F 104
Patent
active
042578299
ABSTRACT:
During the process of movement of an aluminum strip in a floating mode, the strip is first heated and then cooled for the annealing. In cooling the aluminum strip, the aluminum strip is first cooled to a predetermined temperature at an easy cooling temperature gradient, and subsequently cooled to a room temperature at a sharper cooling temperature gradient than the former. During the process of the cooling, a significant thermal stress is not produced in the aluminum strip, and the aluminum strip is cooled without being wrinkled.
REFERENCES:
patent: 3262822 (1966-07-01), Griffith
Kawate Kenji
Okumura Michitoshi
Yoshimoto Hiromu
Daidotokushuko
Dean R.
Drucker William A.
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